Improvement in shirt-studs



J. l, a/J Wall) PATENTED JUL 181871 PATENT QEEIOE.

JOHNSON G. GRISWOLD, OF HARTFORD, CONNECTICUT.

IMPROVEMENT IN SHIRT-STUDS.

Specification forming part of Letters Patent No. 117,069, dated July 18,1871.

To all whom t may concern:

Be it known that I, JOHNSON G. GRIswOLD, of Hartford, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements in Shirt-Studs, and I do hereby declare that the followingis a full, clear, and exact description thereof, whereby a personskilled in the art can make and use the same, reference' being had tothe accompanying drawing and to the letters of reference marked there-Like letters in the iignres indicate the same parts.

My invention consists in an improved shirtbuttonor stud, which can entera button-hole freely without altering its shape, and when inserted willbe held by a cross-bar, which turns on the center and springs into placewhen the top of the button is released by the fingers, thereby securingthe button from being withdrawn.

Figure l is a side view of my invention. Fig. 2 is a section through themiddle at right angles to Fig. l. Fig. 3 is a top view with the topshell removed to show the internal parts.

a' is the top shell, to which is attached the central stem b. c is thecross-piece at the bottom of the button Or stud. It is fastened to thestem b by means of a small pin Or otherwise. dis the under shell of thetop part of the stud. To this is firmly attached the shank e whichenters the button-hole. This shank is made long and tliin, so as to beabout the shape of an ordinary button-hole'. In this shank is a hollowarbor, in which the stem b turns. The shank e and the cross-piece o aremade of about the same shape, so that when they are turned in the sainedirection they will enter the button-hole smoothly together. At thelower edge of the shank e is the lip f, against which the cross-piece orests when it is turned to correspond with the shank. Its end also actsas a stop when the cross-piece is at right angles to the shank. s is aspiral spring, one end of which is attached to the stem b and the otherto the lower shell d. This spring acts to turn the cross-piece o so thatit rests in its position at right angles to the shank, being held by theend of the lip f acting as a stop.

To insert the improved button Or stud the crosspiece is turned so thatit lies in the same direction as the shank, and is held in this positionby grasping the head of the button. After inserting in the button-holethe head is released, when the cross-piece snaps out at right angles toits former position, under the iniluence of the spring s, and securesthe button in its place.

Vhat I claim as my invention isl. An improved shirt-button or stud,constructed as described, having a cross-piece, o, which springs out atright angles to the shank e after the button is inserted, substantiallyin the manner herein described.

2. The combination Of the spiral spring s, the stem e, and the cross-barc, substantially as described.

J. G. GRISW'OLD.

Witnesses:

THEO. G. ELLIs, GEORGE T. ARTHUR.

